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Buick Rainier 5.3 V8 304hp ECU Tuning File

Buick Rainier 5.3 V8 304hp

2004 - 2007

Power +17bhp
Stock
304bhp
Tuned
321bhp
Torque +24Nm
Stock
447Nm
Tuned
471Nm
Make
Buick
Model
Rainier
Generation
2004 - 2007
Engine
5.3 V8 304hp

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The Buick Rainier 5.3 V8 304hp (2004 - 2007) produces 304bhp and 447Nm in standard form. Our Stage 1 ECU tuning file raises output to 321bhp and 471Nm, a gain of 17bhp and 24Nm, with no hardware modifications required. The file is delivered through the ByteFlash Portal and is ready to write to the vehicle.

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